137Caesium activity content data of seabed surface sediments from the Gulf of Bothnia, northern Baltic Sea

doi:doi:10.1594/PANGAEA.938162

137Caesium activity content data of seabed surface sediments from the Gulf of Bothnia, northern Baltic Sea

This dataset includes contents of 137Caesium in surface sediments determined for 1-cm sediment slices of 54 short gravity-cores from the Gulf of Bothnia, northern Baltic Sea. The 137Cs activity of untreated samples was measured by gamma spectrometry using an EG&E Ortec ACE™-2K spectrometer with a four-inch NaI/TI detector at the Geological Survey of Finland (GTK), Espoo. Since 2017, the 137Cs activity of sediment samples has been measured for 60 min using a BrightSpec bMCA-USB pulse height analyser coupled to a well-type NaI(Tl) detector at the Geological Survey of Finland. The 137Cs activity contents are presented per wet weight (Bq kg-1). Samples collected and measured over different years from 2001 to 2019 gave 137Cs values representing discrete time frames during the 18-year sampling/measuring interval, and are not fully, directly comparable. Thus, dataset lists also 137Cs activity content values decay corrected to 2021.

BibTex:

@dataset{Kotilainen_Aarno_T_and_Kotilainen_Mia_M_and_Vartti_Vesa-Pekka_and_Hutri_Kaisa-Leena_and_Virtasalo_Joonas_J_2021,
    abstract = {This dataset includes contents of 137Caesium in surface sediments determined for 1-cm sediment slices of 54 short gravity-cores from the Gulf of Bothnia, northern Baltic Sea.  The 137Cs activity of untreated samples was measured by gamma spectrometry using an EG&E Ortec ACE™-2K spectrometer with a four-inch NaI/TI detector at the Geological Survey of Finland (GTK), Espoo. Since 2017, the 137Cs activity of sediment samples has been measured for 60 min using a BrightSpec bMCA-USB pulse height analyser coupled to a well-type NaI(Tl) detector at the Geological Survey of Finland. The 137Cs activity contents are presented per wet weight (Bq kg-1).  Samples collected and measured over different years from 2001 to 2019 gave 137Cs values representing discrete time frames during the 18-year sampling/measuring interval, and are not fully, directly comparable. Thus, dataset lists also 137Cs activity content values decay corrected to 2021.},
    author = {Kotilainen, Aarno T and Kotilainen, Mia M and Vartti, Vesa-Pekka and Hutri, Kaisa-Leena and Virtasalo, Joonas J},
    doi = {10.1594/PANGAEA.938162},
    institution = {PANGAEA (Biosphere)},
    keyword = {'137Cs', 'Chernobyl', 'Surface sediment', 'sediment', 'the Baltic Sea', 'the Gulf of Bothnia'},
    title = {137Caesium activity content data of seabed surface sediments from the Gulf of Bothnia, northern Baltic Sea},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-938162},
    year = {2021}
}